Hadith on Mercy: None has faith until he is merciful to creation

Abu Musa al-Ashari reported: The Messenger of Allah, peace and blessings be upon him, said, “You will never have faith until you love each other. Shall I tell you what will make you love each other?” They said, “Of course, O Messenger of Allah.” The Prophet said, “Spread peace between yourselves. By the one in whose hand is my soul, you will not enter Paradise until you are merciful to others.” They said, “O Messenger of Allah, all of us are merciful.” The Prophet said, “Verily, it is not only mercy between yourselves, but rather it is mercy for everyone.

Source: al-Sunan al-Kubrā lil-Nasā’ī 5760

Grade: Rijal al-Sahih (narrators are reliable) according to Al-Haythami

عَنْ أَبِي مُوسَى الأَشْعَرِيِّ أَنَّهُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيهِ وَسَلَّمَ يَقُولُ لَنْ تُؤْمِنُوا حَتَّى تَحَابُوا أَفَلا أَدُلُّكُمْ عَلَى مَا تَحَابُونَ عَلَيْهِ قَالُوا بَلَى يَا رَسُولَ اللَّهِ قَالَ أَفْشُوا السَّلامَ بَيْنِكُمْ فَوَالَّذِي نَفْسِي بِيَدِهِ لا تَدْخُلُونَ الْجَنَّةَ حَتَّى تَرَاحَمُوا قَالُوا يَا رَسُولَ اللَّهِ كُلُّنَا رُحْمٌ قَالَ إِنَّهُ لَيْسَ بِرَحْمَةِ أَحَدِكُمْ خَاصَّتَهُ وَلَكِنْ رَحْمَةُ الْعَامَّةِ

5760 السنن الكبرى للنسائي كتاب القضاء سلام الحاكم على الخصوم

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